<template>
  <div id="app">
    <nav>
      <!-- <router-link to="/">Home</router-link> |
                    <router-link to="/about">About</router-link> -->
      <router-link to="/home">首页</router-link>|
      <router-link to="/login" v-show="user == null">登录</router-link>
      <el-button type="primary" @click="logout()" class="button" v-show="user != null">登出</el-button>
    </nav>
    <router-view />
</div>
</template>
<script>
export default {
  created() {
    this.user = localStorage.getItem("user")

  },
  data() {
    return {
      user: {}
    }
  }, methods: {
    logout() {
    localStorage.removeItem('user'),
    this.$message.success("退出登录");
    location.reload();   
      this.$router.push({
        path: "/home",
      });
     
    }
  },

}
</script>
<style>
#app {
  font-family: Avenir, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-align: center;
  color: #2c3e50;
}

nav {
  padding: 30px;
}

nav a {
  font-weight: bold;
  color: #2c3e50;
}

nav a.router-link-exact-active {
  color: #42b983;
}

</style>
